drm/amd/pm: add mc register table initialization

Add mc register table initialization.

Signed-off-by: Evan Quan <[e-mail]>
Acked-by: Alex Deucher <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c

···
 	return result;
 }
 
+int atomctrl_initialize_mc_reg_table_v2_2(
+		struct pp_hwmgr *hwmgr,
+		uint8_t module_index,
+		pp_atomctrl_mc_reg_table *table)
+{
+	ATOM_VRAM_INFO_HEADER_V2_2 *vram_info;
+	ATOM_INIT_REG_BLOCK *reg_block;
+	int result = 0;
+	u8 frev, crev;
+	u16 size;
+
+	vram_info = (ATOM_VRAM_INFO_HEADER_V2_2 *)
+		smu_atom_get_data_table(hwmgr->adev,
+				GetIndexIntoMasterTable(DATA, VRAM_Info), &size, &frev, &crev);
+
+	if (module_index >= vram_info->ucNumOfVRAMModule) {
+		pr_err("Invalid VramInfo table.");
+		result = -1;
+	} else if (vram_info->sHeader.ucTableFormatRevision < 2) {
+		pr_err("Invalid VramInfo table.");
+		result = -1;
+	}
+
+	if (0 == result) {
+		reg_block = (ATOM_INIT_REG_BLOCK *)
+			((uint8_t *)vram_info + le16_to_cpu(vram_info->usMemClkPatchTblOffset));
+		result = atomctrl_set_mc_reg_address_table(reg_block, table);
+	}
+
+	if (0 == result) {
+		result = atomctrl_retrieve_ac_timing(module_index,
+					reg_block, table);
+	}
+
+	return result;
+}
+
 /**
  * Set DRAM timings based on engine clock and memory clock.
  */

drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.h

···
 extern int atomctrl_get_memory_clock_spread_spectrum(struct pp_hwmgr *hwmgr, const uint32_t memory_clock, pp_atomctrl_internal_ss_info *ssInfo);
 extern int atomctrl_get_engine_clock_spread_spectrum(struct pp_hwmgr *hwmgr, const uint32_t engine_clock, pp_atomctrl_internal_ss_info *ssInfo);
 extern int atomctrl_initialize_mc_reg_table(struct pp_hwmgr *hwmgr, uint8_t module_index, pp_atomctrl_mc_reg_table *table);
+extern int atomctrl_initialize_mc_reg_table_v2_2(struct pp_hwmgr *hwmgr, uint8_t module_index, pp_atomctrl_mc_reg_table *table);
 extern int atomctrl_set_engine_dram_timings_rv770(struct pp_hwmgr *hwmgr, uint32_t engine_clock, uint32_t memory_clock);
 extern uint32_t atomctrl_get_reference_clock(struct pp_hwmgr *hwmgr);
 extern int atomctrl_get_memory_pll_dividers_si(struct pp_hwmgr *hwmgr, uint32_t clock_value, pp_atomctrl_memory_clock_param *mpll_param, bool strobe_mode);

drivers/gpu/drm/amd/pm/powerplay/smumgr/polaris10_smumgr.c

···
 	return error ? -1 : 0;
 }
 
+static uint8_t polaris10_get_memory_modile_index(struct pp_hwmgr *hwmgr)
+{
+	return (uint8_t) (0xFF & (cgs_read_register(hwmgr->device, mmBIOS_SCRATCH_4) >> 16));
+}
+
+static int polaris10_initialize_mc_reg_table(struct pp_hwmgr *hwmgr)
+{
+	int result;
+	struct polaris10_smumgr *smu_data = (struct polaris10_smumgr *)(hwmgr->smu_backend);
+	pp_atomctrl_mc_reg_table *mc_reg_table = &smu_data->mc_reg_table;
+	uint8_t module_index = polaris10_get_memory_modile_index(hwmgr);
+
+	memset(mc_reg_table, 0, sizeof(pp_atomctrl_mc_reg_table));
+	result = atomctrl_initialize_mc_reg_table_v2_2(hwmgr, module_index, mc_reg_table);
+
+	return result;
+}
+
 static bool polaris10_is_dpm_running(struct pp_hwmgr *hwmgr)
 {
 	return (1 == PHM_READ_INDIRECT_FIELD(hwmgr->device,
···
 	.populate_all_graphic_levels = polaris10_populate_all_graphic_levels,
 	.populate_all_memory_levels = polaris10_populate_all_memory_levels,
 	.get_mac_definition = polaris10_get_mac_definition,
+	.initialize_mc_reg_table = polaris10_initialize_mc_reg_table,
 	.is_dpm_running = polaris10_is_dpm_running,
 	.is_hw_avfs_present = polaris10_is_hw_avfs_present,
 	.update_dpm_settings = polaris10_update_dpm_settings,

drivers/gpu/drm/amd/pm/powerplay/smumgr/polaris10_smumgr.h

···
 	struct polaris10_range_table                range_table[NUM_SCLK_RANGE];
 	const struct polaris10_pt_defaults       *power_tune_defaults;
 	uint32_t               bif_sclk_table[SMU74_MAX_LEVELS_LINK];
+	pp_atomctrl_mc_reg_table             mc_reg_table;
 };